发明授权
- 专利标题： Switching power supply device and electronic apparatus
- 专利标题（中）： 开关电源装置和电子设备
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申请号： US10564025申请日： 2005-04-20
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公开(公告)号： US07433208B2公开(公告)日： 2008-10-07
- 发明人: Akio Nishida , Fumi Kitao , Hiroshi Takemura
- 申请人： Akio Nishida , Fumi Kitao , Hiroshi Takemura
- 申请人地址： JP Kyoto
- 专利权人： Murata Manufacturing Co., Ltd.
- 当前专利权人： Murata Manufacturing Co., Ltd.
- 当前专利权人地址： JP Kyoto
- 代理机构： Keating & Bennett, LLP
- 优先权： JP2004-201066 20040707
- 国际申请： PCT/JP2005/007496 WO 20050420
- 国际公布： WO2006/006289 WO 20060119
- 主分类号： H02M3/335
- IPC分类号： H02M3/335
摘要：
A switching power supply device includes a primary winding of a transformer that is connected in series to a first switching element, and a secondary winding is provided with a rectifier circuit and an output voltage control circuit arranged to detect an output voltage and feed it back to a control circuit. The control circuit is provided with an on-period control circuit arranged to turn off the first switching element in an on-state based on a feedback signal from the output voltage control circuit and an off-period control circuit arranged to control an off-period thereof by delaying turn-on of the first switching element based on the feedback signal.
公开/授权文献
- US20080049472A1 Switching Power Supply Device and Electronic Apparatus 公开/授权日：2008-02-28
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